阅读说明：本技术 一种新型的充电连接器 (Novel charging connector ) 是由 鲍红力 范利海 王伟 赵园园 于 2020-10-27 设计创作，主要内容包括：一种新型的充电连接器,包括连接器壳体和安装在连接器壳体后端的尾盖,连接器壳体上开设有容纳腔,压板安装在容纳腔内,压板上沿轴向设有供端子部件穿设的穿装孔,穿装孔包括设于压板前端的弹性齿状结构孔及设于压板后端并与弹性齿状结构孔连通的引导孔,引导孔穿出于尾盖后端,端子部件上设有凸台；安装时,端子部件由引导孔插入穿装孔内且在行进至所述凸台通过弹性齿状结构孔后到达固定位,此时凸台被限位在弹性齿状结构孔前端面与连接器壳体内设置的挡止部之间。借由上述技术方案,本发明中的端子部件从连接器尾部安装具有独立性,对导线和端子连接设备要求不高,可实现端子部件的快速盲装和拆卸,生产效率高,适合大批量生产。(A novel charging connector comprises a connector shell and a tail cover arranged at the rear end of the connector shell, wherein an accommodating cavity is formed in the connector shell, a pressing plate is arranged in the accommodating cavity, a penetrating hole for a terminal part to penetrate through is formed in the pressing plate in the axial direction, the penetrating hole comprises an elastic tooth-shaped structure hole formed in the front end of the pressing plate and a guide hole formed in the rear end of the pressing plate and communicated with the elastic tooth-shaped structure hole, the guide hole penetrates out of the rear end of the tail cover, and a boss is arranged on the terminal part; when the terminal component is installed, the terminal component is inserted into the penetrating hole from the guide hole and reaches the fixing position after the boss passes through the elastic tooth-shaped structure hole, and at the moment, the boss is limited between the front end face of the elastic tooth-shaped structure hole and the stopping part arranged in the connector shell. By means of the technical scheme, the terminal component has independence in installation from the tail of the connector, the requirements on the lead and the terminal connecting equipment are not high, quick blind installation and disassembly of the terminal component can be achieved, production efficiency is high, and the terminal component is suitable for mass production.)

1. The utility model provides a novel charging connector, includes connector housing and installs the tail-hood at connector housing rear end, its characterized in that: the connector shell is provided with an accommodating cavity, the pressing plate is installed in the accommodating cavity, a penetrating hole for the terminal component to penetrate through is axially formed in the pressing plate, the penetrating hole comprises an elastic tooth-shaped structure hole formed in the front end of the pressing plate and a guide hole formed in the rear end of the pressing plate and communicated with the elastic tooth-shaped structure hole, the guide hole penetrates out of the rear end of the tail cover, and the terminal component is provided with a boss; when the terminal component is installed, the terminal component is inserted into the penetrating hole from the guide hole and reaches the fixing position after the boss passes through the elastic tooth-shaped structure hole, and at the moment, the boss is limited between the front end face of the elastic tooth-shaped structure hole and the stopping part arranged in the connector shell.

2. The charging connector according to claim 1, wherein: at least one guide mistake-proofing key extending along the axial direction is arranged on the inner wall of the guide hole, and a notch corresponding to the guide mistake-proofing key is formed in the boss.

3. The charging connector according to claim 1, wherein: the elastic tooth-shaped structure hole comprises a plurality of elastic tooth sheets distributed along the circumferential direction, and the elastic tooth sheets are bent towards the inner part of the elastic tooth-shaped structure hole; the elastic tooth piece elastically deforms to allow the boss to pass through, and returns to abut against the rear end face of the boss after the boss passes through to limit the terminal component from moving towards the rear end direction.

4. The charging connector according to claim 1, wherein: the pressing plate is connected with the connector main body through a buckle structure.

5. The charging connector according to claim 4, wherein: the buckle structure comprises an elastic buckle arranged on the pressure plate and a buckle groove arranged on the connector shell.

6. The charging connector according to claim 1, wherein: the pressing plate is sleeved with a sealing ring, and the sealing ring is limited between a fixing table arranged on the pressing plate and an adaptive fixing table arranged on the inner wall of the connector shell.

7. The charging connector according to claim 1, wherein: the terminal part comprises a terminal provided with the boss, a lead connected with the rear end of the terminal, a wire sealing body sleeved on the lead in an interference fit mode, and a fixing cover connected with the tail cover in a buckling mode to prevent the wire sealing body from being separated, wherein the wire sealing body is located in the guide hole when the terminal part is located at the fixing position and is in interference fit with the guide hole.

8. The charging connector according to any one of claims 1 to 7, wherein: still include temperature monitoring mechanism, temperature monitoring mechanism includes holding tank, temperature monitoring device, sealing member and monitoring device mounting, and the holding tank is seted up at connector housing outer wall, and temperature monitoring device installs in the holding tank and is used for measuring terminal part temperature, and the sealing member is located in the holding tank and is sealed temperature monitoring device, thereby monitoring device mounting demountable installation is covered on the tail and is covered over the holding tank and carry on spacingly to temperature monitoring device.

9. The charging connector according to claim 8, wherein: the tail cover is provided with a buckling part, the connector shell is provided with a convex key matched with the buckling part, and the monitoring device fixing piece and the buckling part are in sliding fit along the axial direction so as to be convenient for quick assembly and disassembly.

10. The charging connector according to claim 9, wherein: monitoring device mounting inner wall is equipped with the joint barb, is equipped with in the connector main part with the joint barb cooperation in order to realize that the fixed joint groove of preventing moving back of monitoring device mounting, the dismantlement groove has still been seted up to monitoring device mounting inner wall, and elastic buckle is located dismantlement groove one side.

Technical Field

The invention belongs to the technical field of connectors, and particularly relates to a novel charging connector.

Background

New energy automobile charging connector (socket or charging plug) terminal is fixed inside charging connector, general terminal area clamp plate, parts such as sealing washer and the fixed lid of connector afterbody are connected with the wire, the terminal generally adopts the crimping with the wire, modes such as ultrasonic bonding are connected, and connecting device need avoid the bulky and complicated clamp plate of structure that the terminal carried, parts such as sealing washer and the fixed lid of connector afterbody, this has proposed very big space requirement and structural requirement to terminal connecting device, and need protect the spare part that carries during the terminal connection. After the terminal is connected, the terminal is firstly assembled in the connector main body, and then a pressing plate, a sealing ring, a connector tail fixing cover and other structures are assembled. Therefore, the assembly process of the existing connector is complex, the production efficiency is low, the terminal is maintained and replaced only by integrally disassembling parts such as the pressing plate and the connector tail fixing cover when the terminal is maintained and replaced, and the disassembly is inconvenient.

Disclosure of Invention

The invention provides a novel charging connector, which aims to solve the technical problems that in the connection process of a terminal and a lead of the existing connector, parts such as a pressing plate and a tail cover need to be carried, so that the design requirement of terminal connection equipment is high, the carried parts need to be protected, the assembly process of the connector is complex, the mass assembly production efficiency is low, and the terminal is difficult to disassemble.

The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. According to the novel charging connector provided by the invention, the novel charging connector comprises a connector shell and a tail cover arranged at the rear end of the connector shell, wherein an accommodating cavity is formed in the connector shell, a pressing plate is arranged in the accommodating cavity, a penetrating hole for a terminal part to penetrate through is axially formed in the pressing plate, the penetrating hole comprises an elastic tooth-shaped structure hole formed in the front end of the pressing plate and a guide hole formed in the rear end of the pressing plate and communicated with the elastic tooth-shaped structure hole, the guide hole penetrates out of the rear end of the tail cover, and a boss is arranged on the terminal part; when the terminal component is installed, the terminal component is inserted into the penetrating hole from the guide hole and reaches the fixing position after the boss passes through the elastic tooth-shaped structure hole, and at the moment, the boss is limited between the front end face of the elastic tooth-shaped structure hole and the stopping part arranged in the connector shell.

The object of the invention is further achieved by the following technical measures.

In the charging connector, at least one guiding mistake-proofing key extending along the axial direction is arranged on the inner wall of the guiding hole, and a notch corresponding to the guiding mistake-proofing key is formed in the boss.

In the charging connector, the elastic tooth-shaped structure hole includes a plurality of elastic tooth pieces distributed along the circumferential direction, and the elastic tooth pieces are bent towards the inside of the elastic tooth-shaped structure hole; the elastic tooth piece elastically deforms to allow the boss to pass through, and returns to abut against the rear end face of the boss after the boss passes through, so that the terminal component is limited to move towards the rear end direction.

In the charging connector, the pressing plate is connected with the connector body through the buckling structure.

In the charging connector, the fastening structure includes an elastic fastener disposed on the pressing plate and a fastening groove disposed on the connector housing.

In the charging connector, the pressing plate is sleeved with the sealing ring, and the sealing ring is limited between the fixing table arranged on the pressing plate and the adaptive fixing table arranged on the inner wall of the connector shell.

In the charging connector, the terminal component includes a terminal provided with the boss, a wire connected with a rear end of the terminal, a wire sealing body which is sleeved on the wire in an interference manner, and a fixing cover which is connected with the tail cover in a buckling manner to prevent the wire sealing body from coming off, wherein the wire sealing body is located in the guide hole and in interference fit with the guide hole when the terminal component is at the fixing position.

Further, charging connector still includes temperature monitoring mechanism, temperature monitoring mechanism includes holding tank, temperature monitoring device, sealing member and monitoring device mounting, and the holding tank is seted up at connector housing outer wall, and temperature monitoring device installs in the holding tank and is used for measuring terminal part temperature, and the sealing member is located in the holding tank and is sealed temperature monitoring device, thereby monitoring device mounting demountable installation is on the tail cover and is covered over the holding tank and carry on spacingly to temperature monitoring device.

In the charging connector, the tail cover is provided with the buckling part, the connector shell is provided with the convex key matched with the buckling part, and the monitoring device fixing piece is matched with the buckling part in an axial sliding mode so as to be mounted and dismounted conveniently.

Aforementioned charging connector, wherein monitoring device mounting inner wall is equipped with the joint barb, is equipped with in the connector main part with the joint barb cooperation in order to realize that the fixed joint groove that prevents moving back of monitoring device mounting, the dismantlement groove has still been seted up to monitoring device mounting inner wall, and elastic buckle is located dismantlement groove one side.

By means of the technical scheme, the terminal component has independence in installation from the tail of the connector, has low requirements on wires and terminal connecting equipment, can realize quick blind installation and disassembly, is high in production efficiency, and is suitable for mass production. In addition, the temperature monitoring device can be replaced without disassembling the connector main body, so that the problem that the temperature monitoring device in the conventional charging socket or plug cannot be independently installed, disassembled and replaced is effectively solved, the temperature monitoring device is simple and convenient to maintain, and the production efficiency is high.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 to 2 are exploded views of a novel charging connector according to the present invention.

Fig. 3 is a schematic view of the terminal member according to the first embodiment of the present invention when mounted.

Fig. 4 is an exploded view of the temperature monitoring mechanism in the second embodiment of the charging connector of the present invention.

Fig. 5 is a schematic diagram of the connector housing and the tail cap after being connected according to the second embodiment of the charging connector of the present invention.

Fig. 6 is an enlarged view of a portion a of fig. 5.

Fig. 7 is a cross-sectional view of fig. 5.

Fig. 8 is a perspective view of a pressing plate in the second embodiment of the charging connector of the present invention.

Fig. 9 is a structural view of a fixing member of the monitoring device of the present invention.

Fig. 10 is a structural view of the sealing member of the present invention.

Fig. 11 is a structural view of the temperature monitoring device of the present invention.

FIG. 12 is a schematic view of a break in the present invention.

Detailed Description

The following detailed description is to be read in connection with the drawings and the preferred embodiments.

A specific embodiment of a novel charging connector is shown in fig. 1 to 3 and 7 to 8, and includes a connector housing 1 and a tail cover 4 mounted at the rear end of the connector housing 1 through a clamping structure or a screw, the clamping structure includes a lock catch 41 on the tail cover and a lock key 14 on the connector housing and engaged with the lock catch, the connector housing is a socket housing, a receiving cavity 11 is formed on the connector housing, a pressing plate 3 is mounted in the receiving cavity 11, at least one penetrating hole for a terminal component to penetrate through is axially formed on the pressing plate, the penetrating hole includes an elastic tooth-shaped structure hole 32 formed at the front end of the pressing plate and a guide hole 34 formed at the rear end of the pressing plate and communicated with the elastic tooth-shaped structure hole, the rear end of the 34 penetrates out of the rear end of the tail cover 4, the terminal component 9 is an independent component composed of a terminal 5, a lead 8, a wire sealing body 6 and a fixing cover 7, a boss 51 is radially formed on the outer wall of the terminal, the rear end of the terminal is connected with the lead in advance, the connection mode of the terminal and the lead is not limited to crimping or welding, and the wire sealing body is positioned in the guide hole and is in interference fit with the inner wall of the guide hole to play a sealing role when the terminal component is at the fixed position; the fixed cover 7 is sleeved on the lead 8, is positioned at the rear end of the wire sealing body and is used for being connected with the tail cover to prevent the wire sealing body from separating from the guide hole; when the terminal component is installed, the terminal component 9 which is assembled in advance is inserted into the through installation hole from the rear end of the guide hole 34, the terminal component is pushed to reach the fixing position after the boss 51 passes through the elastic dentate structure hole 32, and at the moment, the boss 51 is limited between the front end face of the elastic dentate structure hole and the stopping part 15 arranged in the connector shell, so that the terminal component is assembled quickly. Specifically, the elastic tooth-shaped structure hole includes a plurality of elastic tooth pieces 321 distributed along the circumferential direction, the elastic tooth pieces are bent toward the inside of the elastic tooth-shaped structure hole 32, so that the elastic tooth-shaped structure hole is in a front-end inward-contraction structure, the boss radially extrudes each elastic tooth piece when passing through the elastic tooth-shaped structure hole, the elastic tooth pieces deform to facilitate the boss to pass through, and the boss is reset through each elastic tooth piece at the back and forms a stop fit relation with the boss in the axial direction, so that the terminal component is prevented from being pulled out toward the back end.

Preferably, at least one axially extending guiding anti-error key 31 is disposed on the inner wall of the guiding hole, and referring to fig. 12, a notch 511 corresponding to the guiding anti-error key is disposed on the boss 51, so that the terminal member can enter the elastic tooth-shaped structure hole along the guiding anti-error key in a completely blind insertion manner.

With reference to fig. 1, the pressing plate 3 is connected to the connector housing through a snap structure, the snap structure includes an elastic snap 35 provided on the pressing plate and a snap groove 13 provided on the connector housing 1, the snap groove is a through groove, so that the elastic snap can be directly pressed from the outside of the connector housing to separate from the snap groove, thereby quickly detaching the pressing plate and the terminal member. Further, the pressing plate 3 is sleeved with the sealing ring 2, the sealing ring 2 is limited between the fixing table 33 arranged on the pressing plate and the adaptive fixing table 12 arranged on the inner wall of the connector shell, and the pressing plate is guaranteed not to move relatively in the axial direction after being installed in the connector shell. The outer wall of the pressure plate is provided with a guide groove 36 along the axial direction, the inner wall of the accommodating cavity of the connector shell is provided with a guide key corresponding to the guide groove, and the guide key and the guide groove are in guide sliding fit to realize rapid assembly of the pressure plate and radial rotation stopping after assembly.

The second embodiment is as follows:

on the basis of the first specific embodiment, as a replacement, the pressing plate 3 may also be limited in the accommodating cavity 11 through the tail cover 4, at this time, the buckle structure is not required to be arranged, the pressing plate and the terminal component can be directly taken out after the tail cover is detached from the connector housing, and then the elastic tooth piece 321 in the elastic tooth-shaped structure hole is deformed by using the tool, so that the terminal component is withdrawn towards the rear end, and the terminal component can be integrated.

Furthermore, the charging connector is further provided with a temperature monitoring mechanism, the temperature monitoring mechanism comprises an accommodating groove 101, a temperature monitoring device 102, a sealing element 103 and a monitoring device fixing element 104, the accommodating groove 101 is formed in the outer wall of the connector shell 1, the temperature monitoring device 102 is installed in the accommodating groove 101, the detection end of the temperature monitoring device 102 is used for measuring the temperature of the terminal part, the sealing element 103 is arranged in the accommodating groove and seals the temperature monitoring device 102, and the monitoring device fixing element 104 is detachably installed on the tail cover and is installed in place to cover the accommodating groove 101 so as to limit and protect the temperature monitoring device 102.

A buckling part 42 is further arranged on the tail cover 4, a convex key 16 matched with the buckling part is arranged on the connector shell, and a monitoring device fixing part 104 is matched with the buckling part 42 in a sliding mode along the axial direction; specifically, protrusions 1041 are arranged on two sides of the monitoring device fixing piece, and guide grooves 421 corresponding to the protrusions are arranged on inner walls on two sides of the buckling portion. Further, a clamping barb 1042 is arranged on the inner wall of the monitoring device fixing piece, a clamping groove 17 is formed in the connector shell, the rear end of the elastic buckle is a vertical surface perpendicular to the sliding direction, and the inner wall surface of the clamping groove is perpendicular to the sliding direction, so that after the clamping barb falls into the clamping groove, the clamping barb and the clamping groove are in stop fit in the withdrawing direction of the monitoring device fixing piece to achieve fixing and anti-withdrawing of the monitoring device fixing piece.

It is worth explaining, after addding the temperature monitoring mechanism, the clamp plate not only can be spacing in the connector housing through the tail-hood and do not set up the buckle structure, the structure of clamp plate this moment as shown in fig. 8, also can keep the buckle structure that a specific embodiment adopted, the buckle groove is the joint groove this moment, it can supply elasticity buckle and joint barb on the clamp plate to let in simultaneously and fall into and realize corresponding function, for example when connector housing thickness is big or the groove width in joint groove enough makes elasticity buckle and joint barb in the radial mutual stagger fall into the inslot all can. Alternatively, the connector housing is provided with the engagement groove 17 and the engagement groove 13, which are offset in the axial direction or the radial direction.

In order to facilitate quick disassembly of the monitoring device fixing piece for maintenance or replacement of the temperature monitoring device, a disassembly groove 1043 is formed in the inner wall of the monitoring device fixing piece along the axial direction, the clamping barb is located on one side of the disassembly groove, and an avoidance groove 1044 is formed in the inner wall of the monitoring device fixing piece at the position of the movable end of the elastic buckle; when the connector is disassembled, the disassembling tool obliquely stretches into the disassembling groove and lifts the movable end of the clamping barb, so that the inner wall surface of the clamping groove is avoided by the vertical surface of the rear end of the elastic buckle in the axial direction, the movable end of the elastic buckle falls into the avoiding groove at the moment, then the monitoring device fixing piece can be pushed and disassembled from the connector main body towards the rear end direction, and finally the sealing piece is taken out to be capable of being together pulled out of the temperature monitoring device without disassembling the connector main body, so that the connector is very convenient. In other embodiments, the fixing member of the monitoring device may be fixed by connecting the screw with the connector housing or the snap-fit portion, but the hiding performance of the exposed connecting member is weak, which may cause a non-professional unfamiliar with the product to easily detach the temperature monitoring device for maintenance or replacement, and may cause the product to malfunction or damage.

In this embodiment, two through holes and corresponding terminal members are provided on the pressing plate, and in order to monitor each terminal member, two temperature monitoring mechanisms are provided to measure the temperature signal of one terminal member respectively.

The sealing element 103 comprises a convex rib 1031 in interference fit with the accommodating groove and a limiting plate 1032 arranged at the top of the convex rib, and correspondingly, the top of the accommodating groove on the connector housing extends radially to form a stepped groove for embedding the limiting plate so as to be convenient for quick assembly or disassembly of the sealing element; the convex ribs and the accommodating grooves are compressed and sealed to realize extrusion fixation of the sealing elements and radial limitation of the temperature monitoring device.

The temperature monitoring device 102 includes a temperature sensing device 1021 and a signal line 1022, wherein the temperature sensing device 1021 and the signal line 1022 are electrically connected, the temperature sensing device is mounted in place, the monitoring end of the temperature sensing device contacts or approaches the terminal to obtain a terminal temperature signal, and the signal line penetrates through the sealing member and then can be led out from the connector body through the dismounting groove so as to send the temperature signal to the relevant control module.

Referring to fig. 7, the terminal is provided with a detection hole 52 communicated with the bottom end of the accommodating groove, and the terminal component can be just opposite to the bottom end opening of the accommodating groove after the terminal component is blindly inserted in place under the guiding and installing action of the guiding error-proofing key, and referring to fig. 8, the elastic tooth-shaped structure hole 32 is also provided with a notch 322 for allowing the temperature monitoring device to pass through. Preferably, the detection hole is arranged close to the joint of the terminal and the lead, and the temperature of the joint is highest, so that the detection end of the temperature monitoring device is arranged in the detection hole after the temperature monitoring device is installed in place, and the measurement precision of the temperature acquisition device can be improved. It should be noted that, in other embodiments, the temperature monitoring device may be disposed close to the terminal to prevent the terminal from being attached to the terminal, and at this time, the detection hole may not be disposed.

In other embodiments, the connector housing may be a plug housing, and the shape of the connector housing is not limited to a square or a circle; the number of the penetrating holes is not limited to two, at least one penetrating hole is needed, the number of the corresponding terminal components is consistent with that of the penetrating holes, and the temperature monitoring device can be adaptively configured according to the number of the terminals to be monitored.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art can make any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the present invention without departing from the scope of the present invention, and still fall within the scope of the present invention.